Source for java.awt.dnd.DropTargetDropEvent

   1: /* DropTargetDropEvent.java --
   2:    Copyright (C) 2002 Free Software Foundation, Inc.
   3: 
   4: This file is part of GNU Classpath.
   5: 
   6: GNU Classpath is free software; you can redistribute it and/or modify
   7: it under the terms of the GNU General Public License as published by
   8: the Free Software Foundation; either version 2, or (at your option)
   9: any later version.
  10: 
  11: GNU Classpath is distributed in the hope that it will be useful, but
  12: WITHOUT ANY WARRANTY; without even the implied warranty of
  13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14: General Public License for more details.
  15: 
  16: You should have received a copy of the GNU General Public License
  17: along with GNU Classpath; see the file COPYING.  If not, write to the
  18: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19: 02110-1301 USA.
  20: 
  21: Linking this library statically or dynamically with other modules is
  22: making a combined work based on this library.  Thus, the terms and
  23: conditions of the GNU General Public License cover the whole
  24: combination.
  25: 
  26: As a special exception, the copyright holders of this library give you
  27: permission to link this library with independent modules to produce an
  28: executable, regardless of the license terms of these independent
  29: modules, and to copy and distribute the resulting executable under
  30: terms of your choice, provided that you also meet, for each linked
  31: independent module, the terms and conditions of the license of that
  32: module.  An independent module is a module which is not derived from
  33: or based on this library.  If you modify this library, you may extend
  34: this exception to your version of the library, but you are not
  35: obligated to do so.  If you do not wish to do so, delete this
  36: exception statement from your version. */
  37: 
  38: package java.awt.dnd;
  39: 
  40: import gnu.classpath.NotImplementedException;
  41: 
  42: import java.awt.Point;
  43: import java.awt.datatransfer.DataFlavor;
  44: import java.awt.datatransfer.Transferable;
  45: import java.util.List;
  46: 
  47: /**
  48:  * @since 1.2
  49:  */
  50: public class DropTargetDropEvent extends DropTargetEvent
  51: {
  52:   /**
  53:    * Compatible with JDK 1.2+
  54:    */
  55:   private static final long serialVersionUID = -1721911170440459322L;
  56: 
  57:   private final int dropAction;
  58:   private final int actions;
  59:   private final Point location;
  60:   private final boolean isLocalTx;
  61:   
  62:   /**
  63:    * Initializes a <code>DropTargetDropEvent</code>. By default this constructor
  64:    * assumes that the target is not int same JVM.
  65:    *
  66:    * @exception IllegalArgumentException If dropAction is not one of DnDConstants,
  67:    * actions is not a bitwise mask of DnDConstants, or dtc is null.
  68:    * @exception NullPointerException If location is null.
  69:    */
  70:   public DropTargetDropEvent(DropTargetContext dtc, Point location,
  71:                              int dropAction, int actions)
  72:   {
  73:     this(dtc, location, dropAction, actions, false);
  74:   }
  75: 
  76:   /**
  77:    * Initializes a <code>DropTargetDropEvent</code>.
  78:    *
  79:    * @exception IllegalArgumentException If dropAction is not one of DnDConstants,
  80:    * actions is not a bitwise mask of DnDConstants, or dtc is null.
  81:    * @exception NullPointerException If location is null.
  82:    */
  83:   public DropTargetDropEvent(DropTargetContext dtc, Point location,
  84:                              int dropAction, int actions, boolean isLocalTx)
  85:   {
  86:     super(dtc);
  87: 
  88:     if (location == null)
  89:       throw new NullPointerException();
  90: 
  91:     if (dtc == null)
  92:       throw new IllegalArgumentException();
  93: 
  94:     if (dropAction != DnDConstants.ACTION_NONE
  95:         && dropAction != DnDConstants.ACTION_COPY
  96:         && dropAction != DnDConstants.ACTION_MOVE
  97:         && dropAction != DnDConstants.ACTION_COPY_OR_MOVE
  98:         && dropAction != DnDConstants.ACTION_LINK
  99:         && dropAction != DnDConstants.ACTION_REFERENCE)
 100:       throw new IllegalArgumentException();
 101: 
 102:     int actionsMask = DnDConstants.ACTION_NONE
 103:                       | DnDConstants.ACTION_COPY
 104:                       | DnDConstants.ACTION_MOVE
 105:                       | DnDConstants.ACTION_COPY_OR_MOVE
 106:                       | DnDConstants.ACTION_LINK
 107:                       | DnDConstants.ACTION_REFERENCE;
 108:     
 109:     if (~(actions ^ actionsMask) != 0)
 110:       throw new IllegalArgumentException();
 111:     
 112:     this.dropAction = dropAction;
 113:     this.actions = actions;
 114:     this.location = location;
 115:     this.isLocalTx = isLocalTx;
 116:   }
 117:   
 118:   public Point getLocation()
 119:   {
 120:     return location;
 121:   }
 122: 
 123:   public DataFlavor[] getCurrentDataFlavors()
 124:   {
 125:     return context.getCurrentDataFlavors();
 126:   }
 127: 
 128:   public List getCurrentDataFlavorsAsList()
 129:   {
 130:     return context.getCurrentDataFlavorsAsList();
 131:   }
 132: 
 133:   public boolean isDataFlavorSupported(DataFlavor flavor)
 134:   {
 135:     return context.isDataFlavorSupported(flavor);
 136:   }
 137: 
 138:   public int getSourceActions()
 139:   {
 140:     return actions;
 141:   }
 142: 
 143:   public int getDropAction()
 144:   {
 145:     return dropAction;
 146:   }
 147: 
 148:   public Transferable getTransferable()
 149:   {
 150:     return context.getTransferable ();
 151:   }
 152: 
 153:   public void acceptDrop(int dropAction)
 154:   {
 155:     context.acceptDrop(dropAction);
 156:   }
 157: 
 158:   public void rejectDrop()
 159:   {
 160:     context.rejectDrop();
 161:   }
 162: 
 163:   public void dropComplete(boolean success)
 164:     throws NotImplementedException
 165:   {
 166:     // FIXME: implement this
 167:   }
 168: 
 169:   public boolean isLocalTransfer()
 170:   {
 171:     return isLocalTx;
 172:   }
 173: } // class DropTargetDropEvent